which is more harmful smoking or chewing tobacco Why all forms of are not just Smoking & Oral Health: Chestnut

Nicotine makes it to the hair the way all other drugs do, by its presence in the blood that nourishes the hair follicle

3 Although national, state, and local smoking cessation efforts appear to have resulted in a significant reduction in the number of Americans who smoke cigarettes, 7 the overall use of smokeless tobacco has remained mostly unchanged since 2002

WHO Guidelines for Controlling and Monitoring the Tobacco Epidemic

In this proposed rule, we are proposing modifications to all 16 MVPs with the addition and removal of measures and improvement activities based on the MVP development criteria (85 FR 84849 through 84854)